[EricH]

Originally Posted by Bill Moore

Some of the past clues had a number that was related to a "speed constraint". I believe that 10 m/s was used a few years ago for shooting or throwing (when the robots hung on the bar?). Maybe the 5 is indicative of a speed or some other constraint, rather than a quantity of a field component.

Don't forget scoring. A previous hint was, IIRC, something about the equation for a parabola, which was explained at kickoff as having to so with the scoring.

There is, I think, only one rule on the hint: It must refer to the game somehow, but in such a way that nobody gets it.